refactor: break up dstack-sdk into two crates for no_std support (#272)

* .

* Update CI to enforce wasm compatibility

* revert name to dstack-sdk and re-export types for backwards compatibility

* update workflow fo install wasm32 toolchain

* rust-sdk: Update README

* rust-sdk: Move back the crate path

* rust-sdk: Replace x509-parser with pkcs8 for no_std

* rust-sdk: Tune the deps for no_std

* rust-sdk: Add test case for no_std

---------

Co-authored-by: Kevin Wang <wy721@qq.com>

Author: DSharifi

.github/workflows/sdk.yaml

@@ -4,9 +4,9 @@ permissions:
 
 on:
   push:
-    branches: [ master, next, dev-* ]
+    branches: [master, next, dev-*]
   pull_request:
-    branches: [ master, next, dev-* ]
+    branches: [master, next, dev-*]
 
 env:
   CARGO_TERM_COLOR: always
@@ -15,12 +15,21 @@ jobs:
   sdk-tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+      - uses: actions/checkout@v4
 
-    - name: Install Rust
-      uses: dtolnay/rust-toolchain@1.86
-      with:
-        components: clippy, rustfmt
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@1.86
+        with:
+          components: clippy, rustfmt
+          # This additional target is needed for wasm32 compatibility check.
+          targets: wasm32-unknown-unknown
 
-    - name: SDK tests
-      run: cd sdk && ./run-tests.sh
+      - name: SDK tests
+        run: cd sdk && ./run-tests.sh
+
+      - name: Verify WASM compilation
+        # Ensures SDK types can be used in smart contracts
+        run: cargo check --target=wasm32-unknown-unknown -p dstack-sdk-types
+
+      - name: Verify no_std compatibility
+        run: cargo test -p dstack-sdk-types --test no_std_test --no-default-features